主要涉及不同threads之间的通信和同步, 首先利用https://github.com/yottaawesome/cuda-by-example/blob/master/src/chapter05/add_loop_long_blocks.cu这个例子解释了blocksPerGrid, threadsPerBlock的含义,以及如何完成长度超过threads上限的向量加运算。 同一个block内的threads间可以利用shared memory共享数据 __synct...
gitclonehttps://github.com/CodedK/CUDA-by-Example-source-code-for-the-book-s-examples-.git 首先是报错 nvcc -o ray ray.cu In file included from ../common/cpu_bitmap.h:20:0, from ray.cu:19: ../common/gl_helper.h:44:21: fatal error: GL/glut.h: No such file or directory#inclu...
CUDA by Example, written by two senior members of the CUDA software platform team, shows programmers how to employ this new technology. The authors introduce each area of CUDA development through working examples. After a concise introduction to the CUDA platform and architecture, as well as a ...
=== by thread (16,0,0) in block (0,0,0) . . . === Uninitialized __global__ memory read of size 4 bytes === at 0x70 in /home/pgraham/Code/BlogExamples/initcheck_example.cu:8:addToVector(float *) === by thread (17,0,0) in block (0,0,0) . . . === After : Vect...
之前的文章中:Pytorch拓展进阶(一):Pytorch结合C以及Cuda语言。我们简单说明了如何简单利用C语言去拓展Pytorch并且利用编写底层的.cu语言。这篇文章我们说明如何利用C++和Cuda去拓展Pytorch,同样实现我们的自定义功能。 为何使用C++ 之前已经提到了什么我们要拓展,而不是直接使用Pytorch提供的python函数去构建算法函数。很简...
The goal of this series is to provide a learning platform for common CUDA patterns through examples written in Numba CUDA. What this series is not, is a comprehensive guide to either CUDA or Numba. The reader may refer to their respective documentations for that. The structure of this tutori...
如果在解锁互斥锁之前省略了线程保护,即使在使用原子操作时也可能读取过时的信息,因为内存可能还没有被其他线程写入。所以在解锁之前,必须确保更新了内存引用。这个问题是 Alglave 等人首次提出的。在2015 年修复程序被 CUDA by Examples 勘误表中收录。 总结 ...
There are now extensive guides and examples on how to optimize your CUDA code. Find some useful links below:CUDA C Programming Guide CUDA Education Pages Performance Analysis Tools Optimized Libraries Q: How do I choose the optimal number of threads per block? For maximum utilization of ...
Examples of each of these option types are, respectively: Boolean option : nvdisams --print-raw <file> Single value : nvdisasm --binary SM70 <file> List options : cuobjdump --function "foo,bar,foobar" <file> Single value options and list options must have arguments, which must follow ...
19.2.1. System-Allocated Memory: in-depth examples 19.2.1.1. File-backed Unified Memory 19.2.1.2. Inter-Process Communication (IPC) with Unified Memory 19.2.2. Performance Tuning 19.2.2.1. Memory Paging and Page Sizes 19.2.2.1.1. Choosing the right page size ...